Elliptical bottom 1,9:1 and 2:1

We manufacture elliptical bottoms in two possible variants:


Elliptical bottom 1,9:1
Elliptical bottom

Elliptical bottoms 1,9:1

per NFE 81-103

Di = Do - 2t
CR = Di / 1,16
KR = Di / 5,39

SF = according NFE 81-103
DH = Di / 3,8
THi = SF+DH

Elliptical bottom 2:1
Elliptical bottom

Elliptical bottoms 2:1

per ASME VIII Div. 1.

Di = Do - 2t
CR = 0,9Di
KR = 0,17Di

SF = per request
DH = 0,25Di
THi = SF+DH

Technical Data

Technical Explanations


D0 = external head diameter
Di = internal head diameter
CR = crown radius
KR = knuckle radius
SF = straight flange height
DH = depth of dishing
THi = total internal head height
t = wall thickness